分类 / Names
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Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: weitzmani: Lophiobrycon: Greek lophia = crest (in reference to the elongate adipose fin in mature males).
weitzmani: Dedicated to Stanley H. Weitzman for his work on Neotropical Characiformes, especially on the subfamily Glandulocaudulinae (Cha.
Eponymy: Dr Stanley Howard Weitzman (1927–2017) was an American ichthyologist who was Research Scientist Emeritus, Division of Fishes, Department of Invertebrate Zoology, at the National Museum of Natural History, Smithsonian and a professor at George [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 6.9 - 7.0. 热带; 19°C - 21°C (Ref. 52251); 20°S - 21°S
South America: Upper Paraná River basin (Brazil).
南美洲: 上面的巴拉纳河流域 (巴西).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 2.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 52251); 2.7 cm SL (female)
Most of the specimens were caught in a flooded/marshy area draining into the stream, with little current on a muddy bottom with a large amount of decomposing litter. Few specimens were caught in the stream itself, in a margin area of slower current under riparian vegetation over a bottom of rocks, pebbles and sand, with submerged litter only on the bottom of the larger and deeper pools. The species eats mainly aquatic and terrestrial arthropods. Sexual dimorphism (Ref. 52251).
大部分的标本捕获一被水淹没的/多沼地的区域进入水流之内注入, 水流很少的地方在一个泥底部上具有一个大量的分解胎窝。 在一个岩石，小圆石与沙子的底部上的河岸植物下面的一个较慢的水流的边缘区域中，少数标本于水流本身捕获, 藉由水中枯枝落叶只有在更大与更深的水池的底部上。 此鱼种吃主要水生与陆栖的节肢动物。 性的同种二形.(参考文献 52251)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 上面的巴拉纳河流域 (巴西).
Castro, R.M.C., A.C. Ribeiro, R.C. Benine and A.L.A. Melo, 2003. Lophiobrycon weitzmani, a new genus and species of glandulocaudine fish (Characiformes: Characidae) from the rio Grande drainage, upper rio Paraná system, southeastern Brazil. Neotrop. Ichthyol. 1(1):11-19. (Ref. 52251)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
濒危 (EN) (B2ab(ii,iii)); Date assessed: 07 November 2018
人类利用
渔业: 没有兴趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.42 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
